[REF] mail: move createChannel to discuss folder

Part of task-3265211

Part-of: odoo/odoo#128799

addons/mail/static/src/core/common/thread_service.js

@@ -447,16 +447,6 @@ export class ThreadService {
         thread.pendingNewMessages = [];
     }
 
-    async createChannel(name) {
-        const data = await this.orm.call("discuss.channel", "channel_create", [
-            name,
-            this.store.internalUserGroupId,
-        ]);
-        const channel = this.createChannelThread(data);
-        this.sortChannels();
-        this.open(channel);
-    }
-
     unpin(thread) {
         if (this.store.discuss.threadLocalId === thread.localId) {
             this.router.replaceState({ active_id: undefined });

addons/mail/static/src/discuss/core/web/channel_selector.js

@@ -20,7 +20,9 @@ export class ChannelSelector extends Component {
     static template = "discuss.ChannelSelector";
 
     setup() {
+        /** @type {import("@mail/core/common/store_service").Store} */
         this.store = useStore();
+        /** @type {import("@mail/core/common/thread_service").ThreadService} */
         this.threadService = useState(useService("mail.thread"));
         this.personaService = useService("mail.persona");
         /** @type {import("@mail/core/common/suggestion_service").SuggestionService} */
@@ -103,7 +105,16 @@ export class ChannelSelector extends Component {
     onSelect(option) {
         if (this.props.category.id === "channels") {
             if (option.channelId === "__create__") {
-                this.threadService.createChannel(option.label);
+                this.env.services.orm
+                    .call("discuss.channel", "channel_create", [
+                        option.label,
+                        this.store.internalUserGroupId,
+                    ])
+                    .then((data) => {
+                        const channel = this.threadService.createChannelThread(data);
+                        this.threadService.sortChannels();
+                        this.threadService.open(channel);
+                    });
             } else {
                 this.threadService.joinChannel(option.channelId, option.label);
             }